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Income Taxes Reconciliation of effective tax rate (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory Federal rate	35.00%	35.00%	35.00%
Increase (decrease) resulting from:
Change in valuation allowance	(86.40%)	(26.90%)	(30.30%)
Change in uncertain tax positions	56.20%	(9.00%)	(9.80%)
Executive life insurance	2.40%	2.30%	5.10%
State and local taxes, net	10.40%	2.80%	3.20%
Effective income tax rate reconciliation, alternative minimum tax	7.60%	0.00%	0.00%
Meals & entertainment	11.60%	(2.60%)	(1.90%)
Provision to return differences	24.40%	(3.20%)	1.50%
Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Percent	17.90%	(2.20%)	(1.10%)
Other items, net	(4.90%)	(0.10%)	0.30%
Provision for income taxes	74.20%	(3.90%)	2.00%

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Effective Tax Rate Reconciliation Components [Abstract]

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Effective income tax rate reconciliation, alternative minimum tax

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to life insurance expense.

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